gistfile1.py

#!/usr/bin/env python

import sys
import shlex

if len(sys.argv) != 2:
    print 'Syntax: parser.py <filename>'
    sys.exit(1)

filename = sys.argv[1]

with open(filename) as f:
    for arg in shlex.split(f.read()):
        if '=' in arg:
            (key, value) = arg.split('=', 1)
            print 'key: %s, val: %s' % (key,value)